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Finding the Fourth Proportional to 6,657.91, 9,187.91 and 3,673.75

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Solution

The fourth proportional to 6,657.91, 9,187.91 and 3,673.75 is: 5,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.91 : 9,187.91 = 3,673.75 : x
  2. Step 2: Convert to fraction form
    6,657.91/9,187.91 = 3,673.75/x
  3. Step 3: Cross multiply
    6,657.91x = 9,187.91 × 3,673.75
  4. Step 4: Simplify right side
    6,657.91x = 33,754,070.58
  5. Step 5: Solve for x
    x = 33,754,070.58/6,657.91
  6. Step 6: Final answer
    x = 5,069.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.